{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57610",
    "entityType": "User",
    "nonce": "0x3c19e29459ae2e08a28acd3d8e153843ac8755d2c71cea5b9573d0d311091f2a",
    "signature": "0x3483414f93cffe3db755f035380ad412ebda078c7cf4df8c497dc3b514ea1af70901a7b5a056e694f90b99e868078d38f9a6b8e2e4005155f3cb8646b613c0511b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}