{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "242638",
    "entityType": "User",
    "nonce": "0x9f02376c6b0ae0b16eb2de5fb786214ad06ebf3a78be89679ccd45549dd89a72",
    "signature": "0x70a438686779c88b615dec35beaba06ba4c3a4aa654cfce3d33f202b27c7c1eb7048aaafa73df194b355cf6d8685f8fd7f13334325b67a5e98f3cb3f28358dc71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}