{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "701068643",
    "entityType": "User",
    "nonce": "0x77d13344041a17b7c10e61ac464406ee5e4a1eeba8ca8f2962c658e5c843007c",
    "signature": "0x0690bf1eb7e7f9ec04f79c116bcd4165276cf85e30ede14415ebb1dd48ef04a85ba463e28ceacacaf95077cc35de3850255f9fa71b32c5ee2423ca812db3d1c51b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}