{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xef1070e196149f9a9f5d5a99a03620c8247b228d9b4cbe403f679bf09a2536c9",
    "signature": "0xf2b93d74307ad1d1241bdce267eaba3284edcc7f5d2cda057c5ef7082f44f4a76ee75b9f20ffb096e2e19a866e763599e6fcae4259b2634fbed1b3d5f7b710671b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}