{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40651",
    "entityType": "User",
    "nonce": "0xf12a6bf1939784575030bc4f6e3902c1b4fe31e236492c136bab736d53a741bb",
    "signature": "0xe60121f2b141a09bc73448ffab20c3f177d059a689cf231c01c2ef87043b6cc66f9c5f169a20732022c6ac56e809bba9c49858311cedee61608ce39d6c080dc31c",
    "signer": "0xe1EBB2b0eed447a94b95294C357cc71235152A13",
    "userId": "888593291"
  }
}