{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7a0bf971457f2f0f9df6f1e02a38851a0bfb714619f53fdb99f20945484ffd98",
    "signature": "0x3484df9ded72779ca661875e462043f82f9b734fd06f62bd68b995fe850438b0335d07ea61ee495eed1d8b4e22274ad643873f1d812699c7940ac9d4bc02f7a11b",
    "signer": "0x28ADbC6DF165932E36BF06136Ec41D9C10213D41",
    "userId": "962445040"
  }
}