{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "480358465",
    "entityType": "User",
    "nonce": "0xb8a33f5421c750ddb93d0de04639cd45e394913ddfdf4e7e41132afbe54a4071",
    "signature": "0x58c7d36406f5d554d0f7cd5361eab6ffca65fe2ad860c383b523908a83a5f78955f953bc52a1bd8693141f865ad49101a28bb64634699e6868218eb9e77048681c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}