{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137366",
    "entityType": "User",
    "nonce": "0xc420e053053b43e5f058f9985a484377c77ba3bc093b406b8bf053b594133c5d",
    "signature": "0x639ee87d0b4f19009daf165139cdb4d54e6ce2b8dde7cd1a3685bdd138790c1072250a957a445a69d1b920f8be87069c6a0467054389102edc2435b5413673e41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}