{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895527427",
    "entityType": "User",
    "nonce": "0xc50c0405b52c87d439607a733990f8d6a5e03323c7fca441f5748aa6f46b3896",
    "signature": "0x77d5fbe87e61a3ade393ee0057e9a4cbb6e122509c9db6d94dde13d757228c6b086bf9cd2fd4ae1bf19e9d96827b5edd2e74029c16032ff97ad485faa0e5a5bb1c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}