{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xfc8349fd8320747fbbf3aae202644dad9dd9d37455b31d2aac12d1bf3b965579",
    "signature": "0x7f0d111ac98fa5906eec04ce6577cdd74dde64d0c02cf368c3dd4b10f13cb827120e40f6a43aba9e497a558858d978b9184a1a541920ab0a1b71e2a2a8c0918b1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}