{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x03d10a2bf3d10387be03c82729fa3ca4dd39fedea1a2a19e3c4ee09cde2709c4",
    "signature": "0x2cb9db006e6031ef1f0bbf61fe8aad86cf8881fad4cab7c5dd5fdb0cd2df6dc42816d5a0f685890481323962543a6c75e3bfd6d713477df7ea18152104a571bb1b",
    "signer": "0x65BD04fd3A35eFc0A8f60002FB2a5472acF38381",
    "userId": "602257923"
  }
}