{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10431",
    "entityType": "User",
    "nonce": "0x808acedd2a4dd6523b08b39acd56db362f79c729f6c1dd9339df20986cdbe442",
    "signature": "0x55c2081208f941242ab7f0e8865c9282814361e4795376d2c45eec35059dd3a91a6a29ffc1007eb6b669ee8323a94dc104ed59c494b1ac519af96d584403c1ab1c",
    "signer": "0x857E85371c7c9853684bc531085b1Aedf8183A8d",
    "userId": "729406477"
  }
}