{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2990",
    "entityType": "User",
    "nonce": "0x5d0cd9c4a80eba88a59b45b84369a014c2ce8f4bbcdd03e3dd1967e7b8c9ac95",
    "signature": "0xc4f4de012f9a59fdf0ad48da48511a203821cb9d3c69a127d468b0ddeb1b717610d3c94b8a29c144ddee90de4f8221f60e3b7918f5f14b9d4985ebeee2ad3d571c",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}