{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740119",
    "entityType": "User",
    "nonce": "0xd8ca241eb265dec899cc00bc2383d85c2213a1e9b2c32a7d12102ebbdc925b66",
    "signature": "0xb792604fcc321ed06efbe2810b29bca836b73a9b15c3093c62e809fc7e8092e60e6a9be05d4b5bf6ead474aa32d85588130decc4e187979a3058d11818f0694c1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}