{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329041",
    "entityType": "User",
    "nonce": "0x167228464dd2c4c96ebcf01d41a0566df676bc7bae1ef7c556d7bc7f2ddb8411",
    "signature": "0xf7e91b9a4f5512ae50f0ee462407574bc3015b5f3f29ab03c732999b0f2f40025726a64f3c03e1c47782c589bf75b289280c3abdb3529bb85fc58681b4f6b5101c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}