{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a4226e680bea379f6fe9f64615a28b572cf7719a304c530c74001a49b546588",
    "signature": "0xdfba584bcda10ca1828e6ba34dd83edde0f683ea2a60db432e17e7f05d0940827e960f18c718d7f2940901101630822547f726918216ce83366e871cac0d27b71b",
    "signer": "0x4414c3334367466390A0380CBEe7bD3385129ea7",
    "userId": "654968281"
  }
}