{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4589",
    "entityType": "User",
    "nonce": "0xa6d2bd6a67312c2ff3280c368737e2638489a31d02fe47594c4c8ed5b2169d65",
    "signature": "0xc5182eb6cbc68966de9d3d7977da684820a13f57ac4044ca09e34ce6ca657dd92df924f40fe1818818baa2d11e27328dd7ec7e811454d28fa5e238fc3b2b1fb01b",
    "signer": "0xb8270662869c6e1E7EA8A4a51AC83ceca88D2476",
    "userId": "314054174"
  }
}