{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6f595fadf4b4c32bbe8ef0139762db87962e570f69342a57f3d4b2a9adb90ce",
    "signature": "0xa288a01c7c18692536f00903df7a31e0b97ed1b5c3914e8580e63e37c33c3b3c71bcf77a3ac3106c246929daa0b78a68d0210f25463e389ae9b60645239667661b",
    "signer": "0x53ED6f5d2bc122Bdf52f337889e062520b877104",
    "userId": "159075806"
  }
}