{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x340d0ae1d145390670c77c90e8da43cdb7b496132d9d32d0006e9ebe49836313",
    "signature": "0x7fd372324142d723d3dd2ffc18f3f99f3f14cb0919bd44d7d370690cbaac06726cfa8c54aa73726a506c05b4ea95672b0d60522487fbc01b9130c13c43d536bb1c",
    "signer": "0x05879c5e12AD06542dCf5d3192dDDeaa2faa3754",
    "userId": "445555"
  }
}