{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7892",
    "entityType": "User",
    "nonce": "0xe56ccfe4f4dd7dcefdf41db498484e06b8e3e5f46fcf64da6594dde780ddd70f",
    "signature": "0x994e0c95deff17ded58eb5bad031af3f84dd99d8e29583411c2e138c3423e8ff3f8982f7bf8cadaa53ba2d7d2dd1f481de715e7c9a93f6bf660c81e33fef6c651b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}