{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55198",
    "entityType": "User",
    "nonce": "0x442c39750d931d13cd6a532b900b375840859daa84665646edaacdb96f49d121",
    "signature": "0xbfe993d951ebe5e0a70528983d2674737dcecc89cfcdf528a285a9e84510d13c2c4521819d64779f4b583ed752d65355bbfb80542ebccdc7e7e6de40ae64a9b41b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}