{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x1e0ae9ab02ac8f79489d7029ee20613e410b88afcde4461021d7bb8901606ac6",
    "signature": "0x6e39ef4b6e92b728db71505c30d2909ccafe44446fdab371f35b89e6034cfe2d3271f67874f7d0a02f8184e0ffc5dac434f0dda5d938b55a146a6398e78353431c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}