{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217773",
    "entityType": "User",
    "nonce": "0x1c870bb65da584cceb63714586b1d438edeed8e9d60994d392450fcdc4cae2c7",
    "signature": "0x77ee3083b54819abeef841f03bb5fde1d869cc5e8d7129978885f4671e435cb12408139c2c62c5b8e2d5c94cb807c03dcf54329e1346dfe4334ce1b69fdf65dc1c",
    "signer": "0xe2b1dcE37383Da05C6DEcaeCeB1e76b1449f1711",
    "userId": "218728810"
  }
}