{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0x308d85d1a03cc483b5ad1ab60eafb71f91f901c46f9efb1bf1ada88953ddd232",
    "signature": "0xe8e4cff62dbcd31a1b9f3312045e63e27736519e8262af775d1f79852d8c9c441561695a0cbc0b3f191fbfae2267f8b33007de24473e7171da2625c973ded96f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}