{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0xd357bb1e955414f97823fdba782460fb1db82e567abd7f7b35e047a6e12f15da",
    "signature": "0x296feafbe51a33524318064af64a121949a302eb1ef0f34c7270da13ef03fab55f3d08805179c4ee231a494cda7c17a1dcb4a871daf5ff51484790814c0ea48e1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}