{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "564420",
    "entityType": "User",
    "nonce": "0x52f4ddc991f87de6a4c3869b5094ffd72734586cc17e8e8e7f24bbe84839c806",
    "signature": "0xe3a2a73baa30bf65968c8f7e3a91653304faa60a90d384e32b674710ec5fa5884d3e7fdf839443f3e0e3f4c8d39223c896d3ef498a2f3eaab78b85db62a184b91b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}