{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149566028",
    "entityType": "User",
    "nonce": "0x3a718f93a377e26d3cf7a0f74ca3dc5c715e4925b58e3ce3b2afc4f32bf0860f",
    "signature": "0x2b7aecf1e15ad3c69cbffd64a00f8583eb14cf59004b3b50010bc7caf24edd717d3a63cccbc7f4ef19069b168627922d09b4158ce7ef61d0b3932a1ca79857091c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}