{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0x356ee4ce49eda4142bd60bd59cd9e4d77a4ba9dafd9c870c5807878fea2097f8",
    "signature": "0xd4ab543968092f06b30388763277f062ecbdef168ba18c390a2c19845370e68047c2061a7e4b0664b8be4deee1c6191597414fd7dba95c22c89dfba6f9c9e03e1b",
    "signer": "0xD71D6a61b797d5436c8d291306fd7DbCe6257Cc2",
    "userId": "117522"
  }
}