{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x8b05dcba5186eda597e105e5782a6035c7c0b404dd42d794fad1b028e18f8a80",
    "signature": "0x656094c1c33d6f5ceabb3b80ff980f51b4e8749e17d525c2867eb85bfb252a5871226b189446ccec9b6ece20ad88253084c4eace59a415b0c3e92e9166dcb24e1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}