{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfcc7640ae947eec8356bad7b925ab202e8929a905705ba9bce46d0e30fe9e694",
    "signature": "0xd4dc815d620bdf0619278891a366823b919ba39c0f3b65dc8cbfdea4f0dbce8340f647ed5ac25ec6cf023c00fee1b71a24a4930909534e9b8aae746eb401740b1c",
    "signer": "0x0327c1898eCaD00a338eE6C7741626B166Cb53A6",
    "userId": "374446684"
  }
}