{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44478",
    "entityType": "User",
    "nonce": "0x31c13b23e830c5fd214a551cde8e537cdd85a712fe21009306215831f7e88b30",
    "signature": "0x7db8dd6aa643d430543f2654c3a809f3eb78a36d46b4c0ef054282d34dec78945ab2ab2bc5051ec0cf8d5f6c0de5222928dbfd112e63da07086e274e3a64b5ba1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}