{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x0b615c2b91c0469015043ae89df96c544c6f301e7ac0d05aad1f8ef1c79c5ab1",
    "signature": "0x75e7b845068a3d5b26dfceee59fa18f57bb611d80adc1c9190fe4cf3fbee9e4765763d54d7f30b9fba884f092da797aa88d89b1529a9c7301ca51d2257fed4d01b",
    "signer": "0x5501467AFaA7897fBBD65dE583c7E74577B92f74",
    "userId": "608591950"
  }
}