{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222642",
    "entityType": "User",
    "nonce": "0x31344ca0bc2373b951de8d9341630a3ea5ce31083a4bf41901ae6449c0ceeddc",
    "signature": "0xef20aeead74916087726a31e918949a5a25a65672bda162d89dbefadfd99ec7363f061c5b392ababfd2b898777528c50ef2a48651746ea429114583ca9f791a71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}