{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309681",
    "entityType": "User",
    "nonce": "0x2de5f21604e13bbc6804eb7f753e5c8045910fa5200cadad792ee48d02484d82",
    "signature": "0x020b07c96e696465a850d5af24d650744d4d073ff5333dc9e5df1edf4903ed5a159c4adec5beda2a1a01390e19b052f6c045e7ec83ee706b1fa8d8a7a4779ade1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}