{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50359",
    "entityType": "User",
    "nonce": "0x34eca6213125af60a93010186494e1b5b7bc1a18be91bc25e12e20f50ec3561d",
    "signature": "0x373bb3652bdf09ac87d493dacc2a96c7cc9dfbe59f42168f05b27c462a63350a1be0f2c1185f3c8d85f34ef6150a15e5c20e8b10831c09f1844f64fc4b94078f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}