{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "920840215",
    "entityType": "User",
    "nonce": "0xe7ecfe8ae7f820759f5aa3afb8c33975b174e0cbecbee888f66b54799332c905",
    "signature": "0xd0687908ee6cf3a85ce20d0b9aeaf9ecefc7a5f4cfc1cc8bbdb29f95e28d8ba92292cd5e7cb597493efebb210a136259db132d35a42164cc1c93846367d5aa5c1c",
    "signer": "0x2ABe6644EecC756F620e6AE9bf1cc07fDc013121",
    "userId": "925633464"
  }
}