{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142952",
    "entityType": "User",
    "nonce": "0x493352e2c4d3061fddec183d875efc57761b4af58581cedd6eb158082889c29c",
    "signature": "0x79abdd2e4eb21996e8ed3768a7a3e022f1029430872b997b4b226d684665e9ed5053cbdc8e3f8e94c02120d1fc10a4ff1907960aae6f097e29485fb2a16f59ba1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}