{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x41c206a26eeffd9f763a9eed1d3799ff431a91b2af6a6b9a831330be52e01fa3",
    "signature": "0xdeea11d27826e46d96574edb85350b6316af659c7e33fead08f6e9a11f9083a65c3de049c8ec3cbe8d82b3ddb79a31b325654076cca2bc6c2ff3ec7141e0b02d1b",
    "signer": "0xbeABC51a15C83a5270eF45c215D27eE80F71Bb16",
    "userId": "615518071"
  }
}