{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251067",
    "entityType": "User",
    "nonce": "0x091ab237313ec702471c0ea4babe6bb62ee8e82091a5fc7931adc5a8b100d77e",
    "signature": "0x0aaf8925f952751bb74c6214c6bf03c49259f338d8876db4774648516f2bd48b75ae0f6ad65452f5635460925dfab42270c1946146e970b2c6b3c0e4a19e6e651c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}