{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "607165342",
    "entityType": "User",
    "nonce": "0xd82a4814fdb6d4c0ffba80556342579e95f81dd0e1dbcdc1b90a07387b58b119",
    "signature": "0x287f12ba24e0fbdb03e15367b734dede4847119448f107e8284cd97b729247d7250f6ad68c088e21f0d57aaa829d5cfcfda0dba4cfdfc7dc511e51593ae3f64b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}