{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57430399",
    "entityType": "User",
    "nonce": "0xb727f1986bf363d7cc39dac277911fba21f193071b9df7fae50a13e63feceef8",
    "signature": "0x20fe974a581439bf05c55b7b2d2498b6492641e4ebc96727b558da8231e317801ee9a09a3173c1a53ac1cc1e60d0b4c5d9f129771d635778e59b241805a59e211b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}