{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbb8c78e2ac4691914fd0590c0274fa07621ad2e1f82bf38bf06627e5d38bbfb8",
    "signature": "0x7e9a889cdbf726d5139dc6f8ffbccc207b058e929d5e91370e209d362f7178c36660ab74554027486c4381b26228fd5cca4a5909b123a9c5e8e98d9138116e691c",
    "signer": "0xF4b3f4080E93318aE7dcC7c74C79fcC9336D9960",
    "userId": "922884280"
  }
}