{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xee4c602881448742515ca4a1b3cc10e8d2a0fd4c6e436365df860ff5a48d7e42",
    "signature": "0x12d52e8e0e3875714e3759a3f4a85b0bb48d7c7e748f3237ac34b19658ceeca03a5df5f84f770d0ed0d06b6e2ea473850b11a7c2452bf029967350d3d2b70fc71c",
    "signer": "0xe7329Ce126032F68c2453044cd97940847d52483",
    "userId": "697555856"
  }
}