{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0490a98336cac54126aa92c468e4a8bca38a6f4d547e16aa56a08dd57aed66b0",
    "signature": "0xefc860527b225fff034062087b00de2784a12d102579cd121d41f9b1be1db38f751c47f8dac6bf5a689f4adb37edc3f622f6335df8497681b2e78054f29b86021b",
    "signer": "0x711e11faeecd23566057418403c87a93195b4F08",
    "userId": "215864112"
  }
}