{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e00747726c88d79de5932b921e74fc14bdc6716d7e547c4a4b1ed540f53697e",
    "signature": "0x5f49468caad9ce1a56bc22ccffe39d8dd263b1e438a9185bd42cf7273925d23d7e70e27ed53ea0707fd2c5b32eca2b2c2e73e06646e88c0ab0747eee9312f6611c",
    "signer": "0x6070556892Dc49299671b2819032D0F3cD76f175",
    "userId": "923355761"
  }
}