{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "996978306",
    "entityType": "User",
    "nonce": "0x43b58eb4ed75d5690400e04402926d3e667bef87097967d4e54e9121429f3dfc",
    "signature": "0x8622133bbf084703db4a6e6048711f7751bb8c55f2c0e1c80ae386be5bb247c833f39c2cc199af63a92d348aca06d0198e8ac921f1da2a308f991cb7cdca92271c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}