{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0x23e892b9e6b2e07b6a2a7678754a9c3742ea6e5c8007cb5fcb5c11ea8bd67545",
    "signature": "0x2dc00ff98a324602ed0bdc616d83876aedf129c62fac6cfa0f6c00ebb837afb303c37f7e8f98bd7a0cbb94fdc8168063eff4b140fed70c3539458ea928c2cc9e1c",
    "signer": "0x2acBF90b188BEa0e543bF348864E8a02E3814819",
    "userId": "969601314"
  }
}