{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296453887",
    "entityType": "User",
    "nonce": "0xbbc3c9b387af055bc196f70f27bf341740888d8830db36a39c64d441517b3683",
    "signature": "0xccc536afcc2cc800774b6b87867f0452bbcfc51a0fc620a5d19597d65b13b19d7a73e89da80363587676b8541240739aa41d366b8fbf243642199d1075cd30b41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}