{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaec328be0b8777284a01829275f2b5c6a4a875c5b855a64e795158bbbe8c9ca3",
    "signature": "0xf2936628e65a51955f4cbbe8c9e47941f463bb3fe4175f9e74897a162f8615c714ce34a57c578c405519f670055f21c13551c5d4c534425e4bd544e2690130861b",
    "signer": "0x72Df74554c95e53cc1710D76b72146bBC0F3DedD",
    "userId": "659442452"
  }
}