{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7334956016d79b501b1461d25e8976dbd368cca0db881f7310eff6de71b6056c",
    "signature": "0x6d1ece3693416ed6931501e760aab7e1285af75ce59eaf163c8d6e409ed7a6d30c1e45a616b0e8a0e2a6a954465b3d99968913ae3ddbc4bab6a7773e3ec8c64b1b",
    "signer": "0x1EdeBA94Ac57bDa3919C5C728386A4Ea42E1E526",
    "userId": "663565116"
  }
}