{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0xa533f06412504718d601ed3d79ac5bde44b8d3bff2eb377c226d7739f4de02ab",
    "signature": "0x4ffdecd747ee5e1aed549eca152fa356fa2b4944959d1007b854cf27243f78d512f3519ac8dd4c5da795f9c3c64ffb1d2bc14ff72cf1c6ab0573315bdfc6c1541b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}