{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135876",
    "entityType": "User",
    "nonce": "0x4f7cfe6e8b9408e6f925d170c4141faf27a2896348b8d63416380515696edc72",
    "signature": "0x25ce8772b17442869d06a8f75999a6c5518eb6ff28acb73808f3a2b436205f3b29cf4e34257cd613eecabc6f0ce5f12559e1b0fae6943c223fdb761fe921651a1c",
    "signer": "0x857E85371c7c9853684bc531085b1Aedf8183A8d",
    "userId": "729406477"
  }
}