{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880649",
    "entityType": "User",
    "nonce": "0xe1c5fe5bea23b9c9a077cb02a5e295a67cb244991a596ee01f89e3006b558002",
    "signature": "0x54b16ed3d35f01e6b78fe9ee28ea0e0271206bffdd27dffaa2602d1e1cb769c30be6727314ef0f68a712954dcbd9fef81d980fb3e5bf7d417f2b72a0029c5fe01c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}