{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157789",
    "entityType": "User",
    "nonce": "0x25d64991c1acba7aa1d72964d2641a93f1de110e7ae968083fbf87ed051a59b6",
    "signature": "0x1fc3eb3f451178f94c7c420cf046a1091a43a15c1492b68e1e832e673c2c39bf45c0b1a17c213248ff40be0d6c7d93ba9fa5db583905001f258a2c657d1117641b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}