{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189172",
    "entityType": "User",
    "nonce": "0x396a6123fd9c55528d7db6adcb9e90af0af269dc4506e344f92c46a9f518dbdb",
    "signature": "0x1187ac0c4c6d51ff68a3c9ee29a53329e81636aad4b9b70e82a44d2bf0571a8b5efbf743e29bca04e21c3d019bcac46c3ad7b4161454d64b25821566b2f424d51c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}