{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0xc83bf23b50145a27387146fcd66c8e9d214b48730494159fa17f3e6eb7b6d60e",
    "signature": "0x2358428605218e3c805da8573d5e050c24de2df4ea59c74055d08bcbc8bd982d1c25fe87e4063baa790c8da1f1602cd4dd0df209597725ba40905e432ddfa7c91c",
    "signer": "0x70a000296C348C5b25F21889827f220e44CfDc97",
    "userId": "889569599"
  }
}