{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "861108288",
    "entityType": "User",
    "nonce": "0x5d0ca56a4e3915f103a2b0704c02b68cc6aab7c44baa45809297003d0d907c23",
    "signature": "0x600bf7fdfde8dd45627d666d71be7f1a55cd4bd6ee09085b9bc590c6ed31ba125970c610a46389c6361d0e07c63ca46f60c18be484d256bd4c96afff881567e81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}