{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac592a1574b1a060f951f8ca6c36c0637e7a985c08a703342970c5b41ead58b6",
    "signature": "0xf75331cab4d4608e469a576c412dc39ac0b77add952c690d46a0aec74d57292c293cc5c370ed211fe18671ca5778e228fd43b142dd989a69890720e0260290f11b",
    "signer": "0xAd33018d1AA234072Eed7f991F9891f3688158d3",
    "userId": "413212044"
  }
}