{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128483505",
    "entityType": "User",
    "nonce": "0xe295c84e9d0ebe183cd0cffb3ec746d1ffcfe0f95847e1cb7c05679cffd8b58c",
    "signature": "0x454f8c4433d00e4843345b81198210d246a32988b8f436e95c2006cff3723d04132170f2af612c30c8fb58ea0f05f051b5ffb532681614ac206fcd4d5eea112b1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}