{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "803288761",
    "entityType": "User",
    "nonce": "0x29eac4d6247fbb77399093adffdc6fd0eba7fcd1172a2dc085d1244da52cd7ea",
    "signature": "0x8f554302e91c4e64ca603cb82ba96e6cfda4a0c9e5bf35b0a97930eb125404dc7edc92604aae5b477e87564d15aa84e8e6c24d35df64292c404609299ee0cda11b",
    "signer": "0xC98f2A7478079E9280bC12A4bd2F7ECB6e6Ee644",
    "userId": "161912554"
  }
}