{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313133160",
    "entityType": "User",
    "nonce": "0x1cab5a371a8c1b623e7c5f0311d8e1e21520ba016ce73795dce513075411f918",
    "signature": "0xd530ff2b4f2c7a46fd7dae145360fef6e5bd5d0c06a2de6f64bfd9e0185da9d66d1855c04a58e693750706ffa80af448a593d3e3726b4f81454ad2cb1c12029e1c",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}