{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97773",
    "entityType": "User",
    "nonce": "0x1a30bf990cd2336c1adaebbe58fb831a8edf2253834662ca9d2be6becebd9023",
    "signature": "0xf81104aefb5208fb143e680093edbdd9b2256d0a09139f0fa783a213f58707c0673f4963492252a3b0e255f21506c62cd848a4f8795169b23c99d8f7344fa4ec1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}