{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "727793",
    "entityType": "User",
    "nonce": "0x4c006503ab6db1f7adad914d37422cc1842ded8668b782845928262dfd3093ba",
    "signature": "0xa19e12a6f8981d07180e1dccd8fa9d4c0680494b72f5cfed23569c87131e7bab1f5726a5b755e453998634ddc1a3b8ff5162f098ebd2bb1e602af83c428b11c11b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}