{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0x74f12165b2a823a5a211e51cda61db1f62994fb70d6aea05f9a37efd0dff0e17",
    "signature": "0xed3adf829a2e828e8105d12013d4af3f54bfe2d727c85fc47a250e385d32c64c557048873663df3ab418c4f0de558cde3b45215c2a5b1960311d7174a6172e661c",
    "signer": "0x1C91270aF9483550C16389c0d10F0a9e72fAA407",
    "userId": "451779920"
  }
}