{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x1f85d54cc5f1008802530030e6819df3b2b006b0dda4ecb30ebc26d77655a184",
    "signature": "0x9ff5e24b5e9f9b76b378cf50799099def1672ae04d15318d99cd726604bcdd4079b5f70fc48938a92787d53fcbae058c97c07542ac4804593b79caefbc15f6931b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}