{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x9e2e3f44a8c4ad531c886ce5c9700c4c32729f3e14205b864869668fd0b5bdb2",
    "signature": "0xd2d0cd29f3b5ea0d850538e0e25fa2503ac2a305944cd834e941c6aac085b2995813f56540df596d9f030de677cd2e393ac5182e4fc927c8172bf8b999221b741b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}