{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1423117",
    "entityType": "User",
    "nonce": "0x926cd323f825cd87edcdaa889f1f1a1fc92c556325caa316c32ab2fb9685e0be",
    "signature": "0x206db23418baebdd030d01cbfa28d2e8b10e48aa0b7bf8a49c53bdbb657ad0eb60686ef3783c941263301d3bf072146d05a3944a7f138039f73d0b9592aadef81b",
    "signer": "0xc74a5C0B76bF95109EFE2119058182fD3D75EA63",
    "userId": "222972690"
  }
}