{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308722",
    "entityType": "User",
    "nonce": "0x2e67a9e0bd559878fde431798fdaa3a1009ac6e3f87d279afaa97426783385b2",
    "signature": "0x7b09aee9eca613f874ec82581faa19bac07aedf4f0a95e59f713e84838cf829f0945ccc78b3f95265b3fb07b7f99b068dd9cb8d60d8d0c531047517b1dd7caf51b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}