{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1b57cc1abd12f9f0d7a8b47e574b710539f53a1b37cf37425d2cee3adcc868dd",
    "signature": "0x9b8e4add81b7fd4963b72a54e6d5599f8f227f4dd03f79e0d0272f3bd646f27c56c8f3fb09021141b641cc3d5324f8a1dc0b2e4fb3181dd520a7d82934904a751b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}