{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xead553bc2e7b308675888ca12ba2ed447f24d827ef26da68617a228036f8c352",
    "signature": "0x0fb56cdac1b3d8ee2e690a1410c726722de900661001173a9a391f8ab285d8575598c92daed8b89c7b636d0793475a64a265948d4438a12cdc6f4b33e048b5751c",
    "signer": "0xCcE6e55a04F8F17841a00C0A96581EADB7241480",
    "userId": "801196890"
  }
}