{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1489",
    "entityType": "User",
    "nonce": "0x6867fd721a78637be9f7ca70ccc0f2c591cf364b493dd8396015d307a3474b3b",
    "signature": "0x9db1e04a0258f0f306407a132d0e5b534906fa65da0e569beb2e2e418511c0966143f2299f56eacac9673506264ec408decd9f6f44ddef4c012c93458e1e61131c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}