{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x02ae903349b3c300e3700f3a706fe093295dd28b1f8de26e177cc9e4291db61a",
    "signature": "0x2c0d2aadac9d07a65c2cbb967ae3d76561a0917954cb36f20870f4a3c59d61e11105da6af8c50601e91f2018ba7bd5f91c0867ea3d260764261b1eefc605524d1c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}