{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17137",
    "entityType": "User",
    "nonce": "0xad4d108f5e70607a1692c304867105318a0cd5b9f4a148fd53127859fc431b42",
    "signature": "0x91ab6bdd3e025dd3be8f34881d78655ff1fd07470e35e7d3b8b74d7decf85a23737d8b18b05a18c3becd96c21c1b939a6b49e40bb710f394c2bfe429a25a763c1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}