{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "579575816",
    "entityType": "User",
    "nonce": "0x64e7159a3c49012b4467e0805304fce988a636424abc101dc151cff72419b891",
    "signature": "0x454959688ae9c3aeffd17cb8bd956a1f178f0910ee58a3e2711769da86727aa66c8034954dc6a0160536790e696ac2163132a673741dd6138660f48bbbde49541c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}