{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87e28460a72a7135f54f50dc0b011c1d9372ca5889eaac4153a6b54ab6763fed",
    "signature": "0x0f40043e4f2fae7ddad4564712cf1a86a9fa4713f114847f982f0db3569121604b0824e64dcc6c51d2df3958864959488d08502412df61acce9d1dbb988a45fc1c",
    "signer": "0x4F66b0Cc2B7bA1e7851669BEa8D0cA1FbE6ae977",
    "userId": "866894265"
  }
}