{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f85f4694d2354a64c18362f4c1db88207c73cd27daf333025ab21435c799389",
    "signature": "0x04c319a138bc0d9632767a448c9a0c2a040ca26dc56145ec8b9574a5c0c4136a74355caa1d036e919e0e8454fe4d3c17b2f63a7bea89f4d5707d603b45245f491c",
    "signer": "0x4bb1A473082b518026A55062fb8765616f034e27",
    "userId": "235287431"
  }
}