{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369737",
    "entityType": "User",
    "nonce": "0x7783d6706e2eac76d8abed431bdd690e484cf6a862c2b037bbe0f39f23b5dc40",
    "signature": "0xc9769096ed22ef759bcb59345db404ed20c5525461cf932e8dad0f0bdd0e718c0427035a06bbcc172cf0c87ba00973e90b1654c489ce502be8c6caf255ef9b471b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}