{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f8b63040d10e696b3c4d7a5d2abe2aa6acce6b06569e23a1b0ed6c72beb2cd2",
    "signature": "0xd8d57da39205b7598b5d665b4eddd11bb0460512dda5d4017fef4fe72a7798cf3daaa39102c8d53f0deac77f428518ed7f0c2de98978d1e37fdafe8e015cdd9e1b",
    "signer": "0x3bDd57f19A84B53BbAbB60892038153cD50Fd5B9",
    "userId": "859997783"
  }
}