{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xcdeaa1794bf96d4cb70f69e1fd5b6177982d61fd6806c42c51d5a3621af5d495",
    "signature": "0xf03a3f40de3b6e354ce4e426740ae7f419121d5e88ae9aae0c9edd0b3849e79d088f895053e3ee148aea60b9a1ea2aca968c531bfaf4def5e32a3750140fd33a1b",
    "signer": "0xCa890ba09b096164ab040247D3eb511DD5cC5f51",
    "userId": "489821062"
  }
}