{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56737",
    "entityType": "User",
    "nonce": "0x561fe5b493480e6e5efc602df973beac86b9491cc30132d4533dfdccf7d32655",
    "signature": "0xd578851830ecf2ec1a0514b5a2a6f5e9dd0d0fee6b927c6459461728cd1344de494b195d016c5d7f912c8e2c4b149ccb0e7172073e998fcca6313156517ad4741b",
    "signer": "0x862060c02F28f6984692E1Ab0f15419eFdc91D0A",
    "userId": "321032997"
  }
}