{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x954faf7a4ff941b32833e6811d64c09e31b1836d74613d800c7cf563681767a6",
    "signature": "0xc9f817b1ae04b4e9617246dfd5a533f4eaeaaff961f1fcd4f76e6d94ea92292d3ee0ec53afb6244ad433f3dcf07761a2e80e96f5b2124d36a56ae21780207b341c",
    "signer": "0x5C13CD392EcB86FaceF8A07FC5B300833E86cD23",
    "userId": "167249"
  }
}