{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x712e77cae9e8a5bef0dddb32eed6a261d4fd8deb0e9e7529d3ec1b154ce1bb6c",
    "signature": "0x73717c6085318daafd60880778eaf1ef8ff5aaa10a08ba03d73b8540a68977e35f801320abd09ee1bb5d162250e22c1272cf4e281e6fbef720709f565a813acc1c",
    "signer": "0x6AC3d276B2428A1786b259280EFdc447F7Ff9346",
    "userId": "988442533"
  }
}