{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x292a3b240e6d54fb218de3b070c0693d10f1558444d404cda46161791902cad5",
    "signature": "0x441e77c1f01c6bdf4f61111fae6b75e5f2645cbf53e21111703d88bf073be99d007ac554f6cc3e62b54045a2eb5ac0e762ccf590b5e99b33c5f781023dfe9c391c",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}