{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173906",
    "entityType": "User",
    "nonce": "0x7c8c0bfa420b67d58b3ae87e81a6ddd60d4ad7ea45e7761ab3ac8421d4c6cb2c",
    "signature": "0x6731c4596117680fd677960d86e1da5187cbecf98616541131d3c2354801dd221997f20b49c7c2c8294cb6f9438f70a6fd5e2c6b31fa84c5908c00e1eb4865c11c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}