{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x235f27e43968c6e074817525b0f1445eff9a9cfdb8ec7cca5b584db69f160848",
    "signature": "0x758efc986ac353e8c2145b7535064619f2603c50cc59a805aa2de5928d703243148200a4a5cdce5f930dd737a45972bbc322ad77c2a68d0121727cdec47e907c1c",
    "signer": "0x14ab7027c19a202dbEA7a9218aa291D424d901e9",
    "userId": "111579"
  }
}