{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228188487",
    "entityType": "User",
    "nonce": "0x3aef3616685595d10cd4a0a7dcbe2be41e041dea78a2f89aa1293ee36739f8f2",
    "signature": "0x7c60df40943aa499872db08cb3121c3acd1db78cdbd2b7bec64ad2bc9c58763141e370bfaa640a66cdd26c3e441005a12306acae01d4dbf26c290ef07eba60431c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}