{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8ef0696e8afb382c502daa26d26a145495ca210f45400c6792c31cc36a8cc9f",
    "signature": "0xf9339c28121635a8754bcac8eb5082952075a3e61539e3a432eb5f837ca464ce1eb733b6223621ea08c5d233be41970b7225b41b1a3266aae89a9418096178651c",
    "signer": "0xc855e18390263Bb464e7C5c78b67F749F7eB3032",
    "userId": "104158277"
  }
}