{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134982436",
    "entityType": "User",
    "nonce": "0x75ff1c1c346620cc4a09707ee1c5966fd3103eae4a28fb5bfcccb096fea3bf3a",
    "signature": "0xe2a978f5c04dff885c072cd7b658fea263f2814daa0d9d6ed6c85ea56e684c4d4f1face07e804c5d9909321797f3029d49f89302ad750f3a1fd30e48888400511c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}