{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0xbb4446a85e2b3e5ef763f5c73ae9211c9e421a933fec05b7d1bc46a17569396a",
    "signature": "0xad1f3912fce73c8cdf35ba353c51c19275a4702f583158bd75910571efa00b285c8b9bff7811c9e08e9f91862c32e12def177cf4ce67138abe630818951e4b991b",
    "signer": "0x1903E6Ca18922F412Bd29f546b0616E35ad93AbE",
    "userId": "7500"
  }
}