{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "985480",
    "entityType": "User",
    "nonce": "0x17f0f383294d05f8d78415494cb1ac0f29f48ef45b2d3d3ffc5761b50066985c",
    "signature": "0x3cc628bb82bb790dca22d2c1920022eaa4641b00651b9ff69dc0d52b70794f204e5be908e39e78c5615d9507ade161f52c5f4fb1e20de8955c86417e3f25e7741c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}