{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0d5181ceac360cd57c115701d46cc44e691940398e12e68092318ce55c27e652",
    "signature": "0xa0ce167b6612a9ade4bdf093a1eed2f30e1de3fbcafcfc0c931f4ee77ebc9e4b3b632eaafd8f858a7cfe2556e7b1d1f79991dffd728893eced02770da99fb60b1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}