{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208569",
    "entityType": "User",
    "nonce": "0x51dc328903e541518f77a09fd6e70ce5ed00ff6aebaedb729ff8dec3afdf98fd",
    "signature": "0x73d96a43df7e76e34de7140e5a864d63948a8f51f1adc307e468def65448bfee711f6e07f7aebab544d79af73f1b3407bd1f221c0ae0e635270f291f8a6db22b1c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}