{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0xb62a08d47eb64abd85c0bc71742e1711105a213b67d8a9a2d8fd93c5f6f4cf3e",
    "signature": "0x35ef157f1a5c4773affc2d426b69398d48d685e0475d507c0417658357b73b4e5d5d42ae32c99419e00614cea8efe8ed530ba6f90e4bc5fcbf4847828f8a87ee1b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}