{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x981ec12d3e773319aa877aef255b6b2149d5839ba1485e8091fc88fb6c9759db",
    "signature": "0xe48aa9544c96d87a30a8ca7ac40ed428c9addc36beebf4940f5d4d152e2ad1aa2750d0a8f656e9d9814c8890d4424727b42676397a29670ad43e0973f69b48c71c",
    "signer": "0xe4094b5dB0BEBa5eDB0d4D81c5D86377bA5E8f72",
    "userId": "563905866"
  }
}