{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc15fbf1c60f947c9f5257182cde00e44c4eaebf66e0234a3325aa88c686cbe5",
    "signature": "0x3db11fadbae25db3df76d10c58d964bb982631b92e90773478ae0a19648cde4816e3affeaedbaea53fa1e6c732e245ecb9ed0df4a760eb5d6466bcb9154c141b1c",
    "signer": "0x54AC98f416D2743872Ebb6b0642498259590F8ef",
    "userId": "806312947"
  }
}