{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x255644364fbda4d6dfca4e8c9b4992933a1b5043685ccf83dae2fe1059be2587",
    "signature": "0xa8074c0735609545be22d13d9f0f2269a14d455a2051293a49081816abbcd0a1611272aba8a76daf4004a4200b6f08c92ada616b9f90554c10aa359f39022a291b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}