{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781047898",
    "entityType": "User",
    "nonce": "0xa600f677c870832f7aeceeb86eeb76619d3abc8a7721da8bf20a1a4e5e0a7a1f",
    "signature": "0x74e2f4b663dd845768f0afc03b59fa76bbef2830c2ba641523068213e1763ea807d0ad21fdb636589a5caf22ef1030defd35243f8eb36b33df4b32675dfdc2831c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}