{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15842",
    "entityType": "User",
    "nonce": "0x321c57de120fff7b63b4ab8f72726e3c2e09ab9203fa4eed161540c223a30b2e",
    "signature": "0x76cc776204f3404cfdb2837b19cb7aa2c80813c0eb39c6b6352e22c4b94347956e18b6a5293750e412552f1ffad582d46c348e0d5d3d32f004f36df4210416671c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}