{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290685",
    "entityType": "User",
    "nonce": "0xe99a28f08dc28ec0e523cb2cefe864555472c6faab2cf8d9840a0700e1d70dd1",
    "signature": "0xe6731e522368ff4cc2518d1a3692065a626f9c0f2fb40bd29db6ada5d184dbfe549e54d8e8009d2c2c4c08d93ae41ee9096d0ebb2fe361f1a8703fe1f584c0cc1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}