{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166428182",
    "entityType": "User",
    "nonce": "0xed9c19cc9ea62c97f0c4a785c00d4d0f9de5c1711ea5600ffce74fceef6e4f1d",
    "signature": "0xc7443d001bac6fa1bbed4b7679b7c6b2b62948d08d99f059be504a98622b73315a1ab5e6f4eb747d7de064fe95158ee2b9ef496194b47fa7482b86d0a49cd7081b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}