{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342017819",
    "entityType": "User",
    "nonce": "0x222f3edcec31c2ca81c084167820a6830e8c3d3431fbf44cb53b5dfe122f8477",
    "signature": "0x84a63a336252a490496f1fce62bf8a3dc1077963840fa770eba5c0e04be4ea3150604fb3ad2dcda592bb596f32ea97a0960f5b5f470e528a36f6a295564675411b",
    "signer": "0x1EEEf459C8e361773166d5681a5066659BC751D5",
    "userId": "210033902"
  }
}