{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123846",
    "entityType": "User",
    "nonce": "0x5c0ba0426439190b5b29183991063ea04f9c8b99cae91df7c2ab08c9bf792650",
    "signature": "0x935e2953165a134b12287729149285e9a2902e0cb5ed819c5d89d41f788522273ee5f0a577ecd0f4409d41e95161f9dd5d6f590b693dc208e7ac297222abb5b81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}