{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105208807",
    "entityType": "User",
    "nonce": "0xc8d9105ff01f3e928923165196775bb28a46230fccdd6f8d85728398286b49c3",
    "signature": "0x51342317d563ea6560052f874ccbb2d4072fd2f2f2422a0bae980d407af2a51e2c47f9c87cec31a307bbe7c83f34ece7a645870b8cb42b15582c05b7fa7ee3521c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}