{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21894",
    "entityType": "User",
    "nonce": "0x93f6be6a36137d1d9f2799da114211b779dfde4ec6fd3be4203dc60f9e06b94f",
    "signature": "0x3f04035bc3761e2cff33b735457613db16a0ad161e26e15900087da52dd106b63bc1d92a7022482382ad3698b08c07f9b9ee376ec70ece76faabc4acec6b089b1c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}