{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67663",
    "entityType": "User",
    "nonce": "0x769be4e6854fb1db374e504a01d5f5aefed65ce25fb3e875143ed562ba2614d0",
    "signature": "0x2190c22e23503f3357f00495a4ceac06bee930b6e0646cc389276d60930c7cd42a7fd88d08148b521e93adad2ae2c7c229c4b2ec7b9b92664c8230541cdeec3d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}