{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294052",
    "entityType": "User",
    "nonce": "0x2aa3470f82e2f9b1f03995d6776722e8f3d72d56d8b7c4588d6dedd891c5a56d",
    "signature": "0xf5525a4f99bf4c2dc7c54eb5dcb51e89d61d952c953f93aa970dc8f30cd9039b440736dd947fe09d161d12500a98b4ff8433958537660873f977150be7c231781c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}