{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111210",
    "entityType": "User",
    "nonce": "0x95209801c296b16c192a7054b4b8f5ab10c4e0f8c4cce6f7072c52eb90297d66",
    "signature": "0xe782e42abf113af24ff6c3c03fdbc8f39c5f2e089d049482f6b6796c9c5d61dd7a4f2e65c66fbc5577ea3bd0f904bab67f761b6c85203e78b0ed368104f0b0db1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}