{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41557",
    "entityType": "User",
    "nonce": "0xea719da25632e42890256ff86c50a2d57e3af1b7377be8b6d0041653155cf0aa",
    "signature": "0x463532daf4e5c2c6e1912814bb45426ccd06158f9af7436dad66acbf88f73f3e38fcad16b4fd8469fdb547d8b000f2f914d086c3f5d0b93c97d8a4bd4e23bfbb1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}