{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "757274",
    "entityType": "User",
    "nonce": "0x1bc757ee510e8f4dfeda4539ab4f7ed848fc6f234b8bd797e8a1e5ae18fd5549",
    "signature": "0x375d8275b3a0315ac65d25926389aeab0e74431200ef1a321f3b9769d3e4b67a71f0eecd66ce71e4f8581e90fa35a74de6504e2ec6d5868e76a25fd9cfb9429b1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}