{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x84c8dcdcff55a44873ef3c8002313b40c599ba9c46a17f907d1631c0d26a512b",
    "signature": "0x031d1039ca02d363c1920ab13c2a8b4a5752d2bcb70722edb8b604fad39818e83a6d9d8318d0e96be0129a5e2e45b6ac37e213dc5ba2b47344d78bdb2cb278451b",
    "signer": "0xFe4E972E3ec8D8d619816F5644f74CB5bA1B01b1",
    "userId": "219239808"
  }
}