{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210033902",
    "entityType": "User",
    "nonce": "0xc76974a3e3d4d5bb00dc671070715de498f7c501872c0bb1022db317704403eb",
    "signature": "0x938631763e123473932c25f2c8a74c4aafc7814f3fd27a0dec23fecb2c0aa4650470e9a4fe62668382afa9bbf9012d86bc61543112f57c78791f8c6e2827db831c",
    "signer": "0x8d9D00A94c3B1C9992e3CA4386AbBC6345B2E876",
    "userId": "396658415"
  }
}