{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "595420034",
    "entityType": "User",
    "nonce": "0x7cf620a30e02e608320cc2f52e22d7899238be9f6ae626319cae5e70cf6d5f86",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}