{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8614",
    "entityType": "User",
    "nonce": "0xe662246bac3d5bfb9590bd30ede2c6d96d134cee2791e23facf093144061d628",
    "signature": "0x408119ca826e82e3f816944a1adc31865e79cadefc9cc141d675aa452cc92e984b1fb7c2663451ad2b746c72d8fba9accc5eff4eebc4022cab8ecc01d4facc081c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}