{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776731487",
    "entityType": "User",
    "nonce": "0x126dd44795b77c00cdcbfffe03817106c1300e406836735863bc50bbd6b472ed",
    "signature": "0xc121b327cf7ef3f51c7f3003e85ff847a8527a0d34223eebeadb9338ba70444a13ba00072e579feefc2733f5cec2ca4feab61cb91dcfe2b30f5071cd442887fa1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}