{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "896461887",
    "entityType": "User",
    "nonce": "0x042a5b1f3832a74e152246bbb9f02ec116afa5e0eaf09a6378d27927256552ad",
    "signature": "0x05810f486540daff2e87be235a0b28cf57cba343ddf71e2a23aec54aa9432b552681d640d29de5b1487d553c1a2a9b34813535665be4c0e7542b9b28f6252a851b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}