{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f3e51a7ec336302272c5ecdfcdad22e28f3aca2dcd990fc52c942324d655817",
    "signature": "0xfc84c74eef014f5ac26ff5432fe32279d0ffecda394e618d945f77603cdcf2094d0c92f63ccc44d66048a49c51d70e5a5815bc610fdf9721364b5f60aeb5e7fc1b",
    "signer": "0xB7DFA42Fbfc265800C1053e18a988375F083Ce95",
    "userId": "236807825"
  }
}