{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856608",
    "entityType": "User",
    "nonce": "0xcda2718e7320f6a1d82add3ecb1f5dbe852f4ff4f27b9f185cf1d6550be1c634",
    "signature": "0x5f3aaa92a22a69c9255282418f7cc8ca44216c80f7ee41bb2303b2bda26f21171aa53d4d7db23cbfe5d29842452cb43842d50304ab1bf30a26c77b888ca1b9451b",
    "signer": "0xbb3a61e183bb067d10DEE2e5a00392DE9ca6B48D",
    "userId": "528440778"
  }
}