{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0xedc5971412ae50bd9c408245ca5393a6522a4773e21154e31a691c4cf3a1b444",
    "signature": "0x8cc1dfbfcf06f57bc6765d52a3e3a0348a3f6fe514057c019b9c528729afb91474730d996580ac85f75a00b6197189e59bbc1ecd6cc1b80aa07c86e00e106d731b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}