{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0x49df2973a8e72eac9e4e35787e7890b3eb0f2581f6c40bbd170a988fe2ebf937",
    "signature": "0xc254d2d24bb1ddeb28bde9ef6c8d0c2b224a8bcf654ae9716f2af3243b4a48cf65c784d7765482acc456899978c1c0368ddeebafb95ad4ce4bdfa93d0d0f68f41c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}