{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1753607",
    "entityType": "User",
    "nonce": "0x2291d5ef15b3e00a5b7be69a296cf65a73dd03a9b50dff29f253776ffb1bb17e",
    "signature": "0x727bc51c470f889b4dea08027d022677db74c0095b8231fc86d51621fbd43f853c1f9b48595eac089ef58c913bb08dcfd18803c670e2852764d37a19228180431c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}