{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702133",
    "entityType": "User",
    "nonce": "0x1d15b988ad72bb6c5a0982294137467eec28b52dc7e6d7a66c4734f55eacfc05",
    "signature": "0xa81afb927a642f184e623cbe28dd7b517b7807d6e30996b28c0798e1697513c368ad68a30cee9378bfb0e2f2c844bc855b06ebcb05828e02ddb0e9560f79acd11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}