{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142343",
    "entityType": "User",
    "nonce": "0xa99ce4acb681c5b6276329b85f5681cd96f115b3f2daa7e490947580751383ea",
    "signature": "0xb82ad3d9a21435e4eb3048b5814279b4df8a96637cad1880ff14b3e860cb290c18d541a90ae75054fc039a4ab6a54bbcca4dc1871462d7d04950d16f8acd6bde1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}