{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871324932",
    "entityType": "User",
    "nonce": "0x62e7445d7ba810ac450df6d471ead4937081bc6f298633d1d181525f83bb1a1e",
    "signature": "0xe44f51a333f185ff347f5d53001afd4b4e14b298596e473a3a6b1225d676d3d838b652bad8c3ae5bfcb085b8f6898bb5fea391ffba0513c283ea5949650b40a01b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}