{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582209575",
    "entityType": "User",
    "nonce": "0x44221f8047d9820e3645776e6481ff5953dafc5e918f48c4f3ea064b5aae4cb8",
    "signature": "0x9714ea87da1ef73d09c7755e423e20af76ec201e1a38c8aef90f0238305338a4660f6f94c4770ef39d7c3d0cd7015c6b19efbb4cfbf7c3108092ffc6fc720e921b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}