{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144284869",
    "entityType": "User",
    "nonce": "0x7144697a0cc098bd5d941d86fc9d993e37c952185d8dcae2e4fd6b9611fa8ac6",
    "signature": "0x04f49c5fcc3ab88128ed17004bb010425e3f6cf6e88c5d29b7787631735dc616263e82e7d34e0390471aa6d3a0a7dfb4fa3d6c4a698bcc4eab25c3e62c37fb771c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}