{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x28ba9392bbdeaf42dc3cd5eb47687e3f150e1c0dd5f6356cd5f6bfcc49b3c666",
    "signature": "0xc6c46f5d7b915b5c8bc53b4e89b17a71779fd05aa48a87b353f58c587d22ef1676fba52d394eea3534ef40ad065f2a2fbe933aff617b92f2d29993abed6dc7e31b",
    "signer": "0xc3E1A1F6d24cB1f128e405594711717CaaA95FB2",
    "userId": "494935131"
  }
}