{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "734009",
    "entityType": "User",
    "nonce": "0x0ff55df52aad0d51cb91007d7d44bd63a454781035af736ab4d8bb7c81f98d99",
    "signature": "0x367331da295f735960c12ea977f6cb75e233e779aa4fd55b1ea83fbdb40d473b10485df50dad0b549b68ddb34aa3d1c616ff2144a8131c0d842bc407dc9ede1f1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}