{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "918",
    "entityType": "User",
    "nonce": "0xd51e11995213c26240a02ed37d6f336b69ab6cd1e0210d00d4c65d18cfebaf09",
    "signature": "0x239300d70f6fca992a02a16d87b333840844fe47ea33b6a6a411349857b94b46632bdafc112074babcb7a96dae81a60db69d607967548b8b2c053d52dc9ad5001b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}