{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xffc4c7648a8fc985357cc1bcc5f23046615d01b4e14794a86573cd543a9ec55b",
    "signature": "0xfb1d6efa3ef0350c5dcc6220a1d57f9ca71225cc4dd8d8bb0e4cf22161efced470621a3373532a26c7b49674f0e61be46a12e69c14226e08e937a957bfbfd28c1b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}