{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112400",
    "entityType": "User",
    "nonce": "0x35f9ca72221d03c97cc6fcd61e8e2ee270fcda54c87f71c1d9ae1e13dc6779fe",
    "signature": "0x40b5a3033531a24f13e027eae99fccee163da8b11f94ff7384a87651aadf2080790f1db341c07eb02356856deafa72ea9d1063b2cf89779021d5ca73600295f51c",
    "signer": "0x064Ea348B4Ddc8744F23c071534144974f8439d3",
    "userId": "58707019"
  }
}