{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xd8a1509531a8f2bcb551f5148c1fba12bf503a203c38f24e354e6f531ffe8a3e",
    "signature": "0x91fc46c8f136109b14dec7101b6558dc823645c91d7b61bc9969491f14e31e075111263e7e5ae66e314663c366812cb83ab468a5292bd32193910610fa5cda941b",
    "signer": "0xa94e4C47a5C11B5C0b4EC90e5166c3AF602dA094",
    "userId": "458060869"
  }
}