{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7fd8e7ef2b8595a00d2029a219c1422bd2fc17bc2a4c2613d9590b3266fb0e8",
    "signature": "0x83bedd815fc4fe0bc8ea85788e1a969df0c6221eda6862de2f0d30071953e92b31d6f62a945f500f8b2fab9a1dbd94e064bcef226aa8fd2811452e2671851d601c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}