{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99428",
    "entityType": "User",
    "nonce": "0xa927a45c75d6920d247b8734f33d7fe77747f5e1505e4d7a17a784435cbe111c",
    "signature": "0xcf4f5fa80ac356b0f98d5aa549354cc6b1f7d64ac1fb783c00c5011ae9548f2d3ff1c71e147fe38a11dda80aa68eb5d619f3cbf5f22d15fa9f51e9049755a2d61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}