{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35771",
    "entityType": "User",
    "nonce": "0x137e3840b1cbeecbdcb5171138202647daab5840890fd91400723fa4b246ce94",
    "signature": "0xa648158ca9d895d9c9997c0eb12b4d905ed256c09e2cdf90979ca5cfd4a85e3a57813c90614d9411b3f123373e7cb2f0c6b1d8a8dc6f19b270702666fe0ce87f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}