{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x4cc5c5bc7cd904258422e2449fed24f713af20bbfe32bc13e0087344ac8ced71",
    "signature": "0xcaa1ac7dcbdc6722dc8f251f97b0ed9fe6a04531c3f5c6d5fff188104d77a129519ae351fccfe838d33eaa545790c3c41b3607e89a1f96c4793d7b1448c1c8f51c",
    "signer": "0x962AF2A26d37380825711fED9E6c8e5780A24650",
    "userId": "341890729"
  }
}