{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6550",
    "entityType": "User",
    "nonce": "0x7ede7aba74620bdf07d116894ec8eaea94d15d32c45ba93255074eb6d81a64c5",
    "signature": "0xf53f69c020ec18bf4b6ed5e9c42479c69e41c27512d8e086ef517f13a3a364601eb81310aa5907dd5eb91bb26cbbac1340f36e2121ef61afec7c8930674c1caa1b",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}