{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0xcc750d4b0c6eb20a60c4e0a220419cfcb508dec6baefffb130e723bc4aa8f75b",
    "signature": "0x69ef64dcf4a4c20d3d289d49a36c790080725e5e0248f7a102476c94f1c5db3a5c2c3cb1dc3b53eb1d93ad5f65395bc9d459edba0077a7637ae27c7a4f0ea5591c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}