{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138746",
    "entityType": "User",
    "nonce": "0x7c9dd32a0360ed186522e32cb8280a7ae2e09608ab96f604d080ff62ed96d1f1",
    "signature": "0x5c92ee16e241f99e4557a73e61c7ee1a57c0b31f467f6e8af635a21ad3f69c5820acad961a46f068fec62df0a0b2ff24c2c68122dac2a1e7c119d0520d907b371c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}