{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4357",
    "entityType": "User",
    "nonce": "0x26151ab4a93180b641495298160b27c7fd498932a78ed134ca072bb4101026af",
    "signature": "0x8d8bd217674bdac51eab4bdcc3abedafae809c1cdb2125c5797eb6494db21f5d25431a44f46b206f1eb9d89f3bed80873e48aa533284642720a1273b4b65ed0d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}