{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0xdf90b07a1045296734a98e72ce9a1a401663850f65594777d1e82fff464f7d6b",
    "signature": "0xb22793ae3b5398412f1df5ce4307ef8c973dfe7ba19b0b282750e47ab2210f0b28990e3f4845dab564a7e86b9a0d871be2e35350d7c1d672be915dc95fa174241b",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}