{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173817252",
    "entityType": "User",
    "nonce": "0xec490aa897082e69249ab29a313eb7634242010ffbf5c7a888546411282da577",
    "signature": "0xc348046567291d4fd3e394bc0fac2d58250418280d5a30dc10d8cc86fa533ff15d777735410adc14d558287db4925ae545209292a0dc0e8f7590c3caa66e68a71b",
    "signer": "0x6b5502Ee1B43059bf230b3225168d13144b8D51E",
    "userId": "227517261"
  }
}