{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39985301",
    "entityType": "User",
    "nonce": "0x3650cb8010c3ac35249d2e9f96ba2879737821c37b13c46d6fb99b483673ec9a",
    "signature": "0x4c215eb6d76ba6111ed07b00f5a2b49cc2b44436ee24fd74cc2fa894404d45af1e1025beab40982c0efa9a1e99868f1ede3a387949b7299586ca7a21403851771b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}