{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1494131",
    "entityType": "User",
    "nonce": "0x834bea41f1cae2791cc6e532972539a6ad6b80944f5e8e51e67d50fa12137bb7",
    "signature": "0x83eff61afff26dbac41ccf0624e7a9091b83c6cd157ed66b04a0b9b090fec052661fcd6325a8105efa356287c93a8ae84ba1e2568249c0d9cc674f1de1cda0121b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}