{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28964",
    "entityType": "User",
    "nonce": "0x1e45865212ce21619f6db37bd1d69925e1257fbf9fa9de764a6efeee7c4691ba",
    "signature": "0xee897754e142fe7f3af9ea87f3ddc472c48e79567385ae5d33af3440a51a82520d6786a2f5b129816adc882e964745398d6f03491429acbcc55f1f37c66b960a1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}