{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7660",
    "entityType": "User",
    "nonce": "0xa7b589ed6cc635054ea02292b839b72a7043b8f04021bd104706dc44997ce952",
    "signature": "0x07f72141223b90d5d5944f3f9f6eafe321a630367aa3bd7fbaa6f4c07fd4781d553cba5545eaa189da5449526dc9f99952f44237e2be69ccc9a15c5730bcf22f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}