{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89625",
    "entityType": "User",
    "nonce": "0xab132a9e7df696ee5ef37a2ca627498250f06a0ec765bc7b80b4421d5aa42a57",
    "signature": "0x99cc8c5390c90c855607f20ccbd040b5ac86b05d8ff9985118440f56138a02d04755704dbc5c9524b4014d5eaa947971da1cc86dfde5d9b3c8fd2741382ee7bf1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}