{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x525cf33b20dd05d1a81ef1db03db018b7ac34db2637e6778718a541db334b14f",
    "signature": "0x8eca1d657614fda4317ac1755b61f68d3ba334030b0815acdfdac2c085665e7d552881b1a0879b850899ff7a9fe5d54019fc03aa495a6754a00377f56b7888eb1c",
    "signer": "0x2FA75Ee1CfF2B8dA827A4774B76f7246Bd0Ac5E4",
    "userId": "932323826"
  }
}