{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1431",
    "entityType": "User",
    "nonce": "0x7e38b82bb50f5a5ab856d58d1c638f20302108e50a2a1879ee38a5b230a32ede",
    "signature": "0xef09face3d09160db8b80d87556df9a96b4c1bb3668301a13d3e0a8f0d87f98d2289e3c269ec9930e217884acf9c98286d7cbd6195abe4394f9a5c2a89cf1a151b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}