{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd39a2e324cf40069c3f1be568c5fb3d9e2160c50b19308bdae128673f16f4a42",
    "signature": "0x070e4e15a414ee38b3dd9c10c57aab6e5523ab1a2f64961f6fc53fd80e619ffa6c6402785d6fddbf3f5d00e4798761c4b78cf383978045550bbda51a59f77e2d1c",
    "signer": "0x19B1902e8315D7428495E3F505be756A14C14382",
    "userId": "963175434"
  }
}