{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3eb85ffeca8c981eff1c1e309a41cf4ca6b13d30067970c379b5b478746e6570",
    "signature": "0xfb84cfa35753a2ca89472b9c7d5ac7de9c8deaf6f2851cbf67a03d4dc9113bc47a94265167343d8c664eea7a595350a989cb303311cac959017b93c13e64c12f1c",
    "signer": "0x135f87aF624548aC3904b2C7aC49aBD8391D5021",
    "userId": "747399081"
  }
}