{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037252",
    "entityType": "User",
    "nonce": "0xe6a99060f0c7a38ca83fd2be5027dbde4d7f6cfad686607d3100db85dad3d9b3",
    "signature": "0xa66fbfabf7cfedb39284779531feda9057b735c91747423e7715cfac811ef94d7dc5fd693f61ec4b95d309d29364fd9ed699c46dc7a4a479efd645a231d7d8cb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}