{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0x059033def566c00180523b56bbe0d029f1d05665746cb5c0e3c88d70ab983125",
    "signature": "0x01033c434526be605583938b021096b1c3c32830ae48a649ac1a06394a74bfa02395bcb2444cc47979121ce056397336ef07ef2f9d0d9943d64d73384e540ab41c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}