{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdb1e365ae52924af953f347f9332613a4de299e07d54779b7f3248c867abe06f",
    "signature": "0x066e584b57b2f0ba4ffe0f6592e57cd01284c5de9685b47671201a7efa5c2e652616cd34655082bdbc87753ebff890abc643f5ee0640ded455568db81b8cc2a51b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}