{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348395817",
    "entityType": "User",
    "nonce": "0xabd2cad4bed945a911b56054c4190b952f8a46bd4ec8e91cb7aab5bdb0a083f4",
    "signature": "0x546a4135b2994088d43a5fe5a698fe4680455a3a96e969455e3e36b61c821bf57fc046b61b16b1d8152a3ac857f982860f1e15bafeb839da9d0e551346bda21b1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}