{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445923016",
    "entityType": "User",
    "nonce": "0xde3572c29a88a5d1accf39132b19fc989c92cf55cc6ea5da0cf4a804894af967",
    "signature": "0xd6ddb20a62439d01e6303b36d71e99b191068a1234fce0a677528106c7b7ec4a203cc3a1cad8be5368d77747499b00ab0e4c6555eb6f3715d14591cc67b3ae811b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}