{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199221",
    "entityType": "User",
    "nonce": "0xa52614b7fb7647dcd6c9d3b1a6c46d866e0289ebd9d9e1601203711bfa64560a",
    "signature": "0x398aaab362b6fa1c57b8cd115260403e299214bf0253b2358b1d5c5236d904287cb139f590e203e1c1f697e62513f1483265060022374b7ee299485d0a52d1381c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}