{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ade3d2236d146d153ace842446e54cb51e86fb8888edd86b46640dafe7da739",
    "signature": "0x8d9e48cecee7fcb5f85a4322df692248a8e2bb3e2bf06d4272f3c1b41fece3053a7e6dbe4d4e974b966a86829f06de4497430383066ee56f10d53760ca7321581c",
    "signer": "0x1Cf150C059eDe8C5449Af969223197b4f56f5F28",
    "userId": "397265277"
  }
}