{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83331354",
    "entityType": "User",
    "nonce": "0x4f221b6259e11c585e0792df42952997cf8d5f65daaadd2a83465085029d3951",
    "signature": "0x2a7ac8a5128d95d64eb38128a7012509a68306590f21643cac9f92901583ec6c2dff08bac2f4c40a606ece45ca4193a990efddbe43db8ec87e48403e5e23356b1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}