{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373173",
    "entityType": "User",
    "nonce": "0x0908d0627799728eeb2d0e159eeb079cc9348f793d65203d5745d056709e98f5",
    "signature": "0x3bf17c0931acf3d877df9cfe955ee740b9272168efda0374c08955b95dbe908535f9d620ac26a7559dafdac6f45a718ffb5c98959eb5dab41d5180e4ab33a28f1b",
    "signer": "0xb90dea25446900B58b936FB95262D7557e6115B7",
    "userId": "559908939"
  }
}