{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94276ed94ca6662cd9a329fd17af929f490361408fbdc671183b8e2a7101bd82",
    "signature": "0x2787b2a5179a3f2f3ca36d20fe8d6aea38f84390f9cc3fada7c05be4764ef22e3a72ab06d593b47e81ea2e3549bd3416e9387e077a7dedf96786d72f89eac9611c",
    "signer": "0x2A04Bbd7188b24482Fa0e0CaFDf6Cf5F5c64e4E5",
    "userId": "33865540"
  }
}