{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452108975",
    "entityType": "User",
    "nonce": "0x9d0399a89d00e18a10b207dcc6ec11b1a6fe57429a531912ea1470790bff11f9",
    "signature": "0x897fe44f20e10a430d00f1b82e14de84b3be93a577323b984c0637131389671d4dbdb2c16fb207c6d781e45558d500647bc97ca6e020964128660cb49a5bca131b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}