{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49269489",
    "entityType": "User",
    "nonce": "0x1d1e7b6713b3f1f8b1b0cf361e64c74a69776bd4ad759be2a6708d9610239842",
    "signature": "0x46bc1831b84002f42962f3babc1ced507a42931ed2d0435a53f3a6b30360afe869ec75bba7e42bcbae765985ed55fcf4aaa3ddd5ca411837ec733e5a954990301c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}