{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0x256bd89d864e7b1bd2536bb04a587deb710e6504f9750ff1e339ac0249fc331c",
    "signature": "0x4f1214341c42e670ddee6a59a76434486e68805ebd7d31cef58b110962e9ac6c04128afc02bb024db2c8d98f44d66c8139a5b3f7fbd2e4e6c2d960eccf2b7ba91c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}