{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa24c6f250f52b1a1fede62b69992ac23c6c79d7b3479f61ade0f4d0493e7eeb7",
    "signature": "0xc79553c95fdbcb8c916181707dffc1921ee717ffb8626b2ac8fe0bd3581179b925c5a49f906f045a254cb08b54d0225e62d1addd8c8471b1ff204b16df54dd901c",
    "signer": "0x9a5c768De106BE48C39290B55c20D8C5D6A7f6bA",
    "userId": "539482786"
  }
}