{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0xc65f623301c2078ebfbf7d77d448b8add70a0848225c4cd0fca817301ad1ddea",
    "signature": "0x84e467d5a7e040c707144941d685365f7b0cf419229e06f06c86d2c7718d19e1155ae5ff98dcae7b459d9e23df47e8180c9ebbee8c113ee6e71839061cf0bf821b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}