{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303081",
    "entityType": "User",
    "nonce": "0x832c2f7ebf887e1522dee4c5575aab26015ee36331c390fc4eee13f714c2318a",
    "signature": "0x8279e206d0775442bf305e197ab49720022a1feee9375da43f9e09646e85e35a34c90d858693ddf4ee9726eb148069a84f7d83b1feafaee9cb3daba9d2d9cf691c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}