{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66373",
    "entityType": "User",
    "nonce": "0x1806e47e3d663f2e2d76cf74c21ff3de8d2f58e82c96fc549e73e5265fe970d2",
    "signature": "0x8d116e512e9f05f827bf787d1093963078488a1ec2cfc80d817dde28594df6767b092f547733d71754d8a8efac16e88da6dfec5fd587be62745edba2223d311b1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}