{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108938",
    "entityType": "User",
    "nonce": "0xce02121889d9eaa8d7633fd0858639cb40cb425b7d99e7f609e27a854e991593",
    "signature": "0xaa0bf6e8fa4ef6ffca3414cb702cfbb91ba214486e09f27160eb4d6f11537b1e215f488a369415bcf87d042af0b94729acff7b9747b07bf67b0f8e13676aa6d81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}