{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x138fc0574c888b0e6cb45298ea8fd1095a33613928f6941f2634975b8e4f409e",
    "signature": "0x25df52bcef67bde3d831b0a09d7f2f155ec937dabd003be29f699276f5042509214d0a7d01cb88d2476dbd1253772c78a0d45afdeb86fdc309d0bba79efe10a51c",
    "signer": "0xe23805679cAc18775E29FC76E4E9e8D681160D1d",
    "userId": "34149681"
  }
}