{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f1c00412bcebfde8502273b7e597e8030eac6082e4bc5b877935c0e66b4bc76",
    "signature": "0x2f48f7227413638c5c76e3439f4e6a95ad1e0d3503636c0eb537e30c5ba13d156536e25137b2a2a1c5668a5921bfd5f834effa2fa511d653658ecd51cf27c3641b",
    "signer": "0x94f1f4dBd731cD5Ca4c067fA191A38306ec54DEB",
    "userId": "831148556"
  }
}