{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273298559",
    "entityType": "User",
    "nonce": "0xd87302083d3d6225de1abc6663d120de2aba014fbcf11c6fd57c745126cc7e0d",
    "signature": "0x730ba9b33f2f7cad93df2a971a98b91fd46bf9a1a6cdf4a5d0d6e9e62368b23b110f8a48f2e1d39ea72ce9830101b5319e65f1cddba54ebb2af7e52513eb0b2d1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}