{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c89456979cf49983cfcb2624aceae383de409f517a9dda4230b2deb473326bc",
    "signature": "0xa7b1b123f114a66218a13b9c4f39f092665a72bcc347c87a6e6f6b660baf34b57a378101e90fd512700d0de8342ab94907b44b8ef721e1ba01b9fbd0e566e68c1c",
    "signer": "0xB94D096f052b51559298F0E8022085a429B93359",
    "userId": "998540305"
  }
}