{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x4b04c2291bcd3494a57b23d9b63e12ff9f9c0eeba117286c94c8d76abc0c2c07",
    "signature": "0x1057757fd74e7c8263fe302d03a2531221133025add48826eafe9928f95969b24b2647c3fc51cdb96610c33682e9c9fd57fb2b304f81e5bb3d1090ecafd516a21c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}