{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x812cae27d6e52489be5df14eb7aec4245c65ee645942a782521fbb36347a6d60",
    "signature": "0x32f63d72b3977472e9afad58a7a4273510acb931f7f640c4f4ce8a030bc8be5a44fb6ce8ab7b81d0403305b19f50cc3f46411e33efbcec060f6a56693805f24c1c",
    "signer": "0x1fc5318507D25c762d4F8ee26d7Eb9cd66897693",
    "userId": "153573209"
  }
}