{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x178a4286c66d082b6a51f91ac3f25bd4fe48cb20762eeadbc5eb561005e316dd",
    "signature": "0x3b2adc4eb7953df04fc25f5146396d94cd434d1b6517bc0890671b5ba3f405aa2f866877df8910f2cedac707763ef8bdbe04bc8ab125cd505fe530d2d26b868f1b",
    "signer": "0x606cA456981B739f1F381f8859338fcea87f87a1",
    "userId": "779547182"
  }
}