{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728984",
    "entityType": "User",
    "nonce": "0x05b2c2e8de10fd0ddded1cc78ccfb3c2795cc13b0e484513ed5d1278ef35ca0a",
    "signature": "0x295b8a5131bb36395eddb1733154b76aa62d2d2ae7cdbe08dd68da8b1755388b553a49f33f1c91a5cac2063fc18df3a5f94f54319ff2e05773932ef308e60d4a1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}