{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfce29407baf9f51217f9b22de14fa0d944ca251a9fd0d3d03099757b3b284d60",
    "signature": "0xf72a6f8f6fa3a5a7993ec8b7faac9530e9231c105d232f0e8b96950b42acefd87f2fd5e6dc5ca624200ff82b72e64daa0791058b86c4c0731e0f0b49e39a64ee1b",
    "signer": "0x5C1f6fabc4752148231aC080F5Daa085c2Ba2Ab2",
    "userId": "413378711"
  }
}