{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151430",
    "entityType": "User",
    "nonce": "0xe512190fd2fa39b38b52c5a425963050de89e543b836fa25996a4bef3bbe561d",
    "signature": "0x0a3bb1fd3aed8e84b0fedb4098cc00f9d53ffab65ece9570c8a2c87151ca80be523c962c1688c7d2e82be50418b03fea36625fc859b9b5d5277b10e3914ea9771c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}