{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53513",
    "entityType": "User",
    "nonce": "0x1a989bdda90e0bf40138062fe98b09407e98dc92ec3dd71ff02161cf5b042b7f",
    "signature": "0xec039a1f35f93980c07c085863c5ca5fffd808e2aa9157d78f7c3ebc02413e9158b185ac38f571135b23aef6453714ac6a654725faea12690f628fa65b3002ff1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}