{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x009504bc2d6cdf3e4ef0c0c405342272d5dba9acf87c2146374796257213c1b4",
    "signature": "0x37c04eee2c7f1ac5a11d30000a8bec23e28f5d604e0ca55c44dc65fed49ceba06f544a45406f43f69ed544bc7ea186c9782b8d23e3eb1a0d51e0c3e7c2fdadf71b",
    "signer": "0xCCe06168C2294240ab838A9F1C7eFA267F159270",
    "userId": "649932755"
  }
}