{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60640",
    "entityType": "User",
    "nonce": "0x726ac989492efb21d6ed35eed110ffbfd7ef7cae6c73e64d74382c970291eb27",
    "signature": "0x14630012abad5cba82ecb3e28701e7064935986349e2fbd7af34ec4ff74b7df30800ecddb8100b94b042d151af67f22962f19397e2280e78555985d85a8339441c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}