{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c128954c9d28a1a19a0cf56d5cadcb4cff43ad2d077382de03bfba8528e99fb",
    "signature": "0xb666d19bce4d67f5c8518499ac9910e3ae827c612f9e50239fc890809f76e8d465ff51835a049f6108af82e076e940fe48cac406f40631e54ed037d6e5c0342c1b",
    "signer": "0x74d65eB1568b0121918A8BC0E51ebE62F9B11e1C",
    "userId": "655191484"
  }
}