{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302607634",
    "entityType": "User",
    "nonce": "0x0a0ea4d6c962a950a02fe0353442b465a47bb57a56d09a2da99f2ccd8a33bfbb",
    "signature": "0xe3869e0bd09734a8df624677370f03572dd5f656081bdf23f5fd8986bb028b0555f7e693019278e35b789ca39e667d391649f0565d0f989e587c9da22f49cb101c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}