{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113351",
    "entityType": "User",
    "nonce": "0xbb8752ca7bf3fcbe17f2b23c9a9bae0270b24b69c46b2bda3595b9c24c47d2c9",
    "signature": "0x40d001c22319bb0dd6e868e30622ff0b70cde51d12c1743f3f440018bd79ce2d25f7b65572aa414c4c1195f3640d300a5fc77095129a2483d24c2087f0d74f851b",
    "signer": "0x643a7D01c8D4d435f9263d6dE2d6C2C3352e70ed",
    "userId": "305151012"
  }
}