{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353528",
    "entityType": "User",
    "nonce": "0xa076facc51185b8cf7a7f29dc42715ad60aabb7a37eaa5cb9068b401f335f4ae",
    "signature": "0x4e62d56b26bd593a6d277f96761663a606436c572c1677cf2ce2823c969d473609b352956219fc6b4226d3a0a7d4896b68041abf18ff5bef6d6bae2428b6c86f1b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}