{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353058",
    "entityType": "User",
    "nonce": "0x8637b5d424fc318f149eeb0cf195c323f744cefed377e9bce7060bc8ae59c81a",
    "signature": "0x91ac388ea380ef21ae0ec29ab315de3200c8511f9912c448b46c3a2232faf5f05fbd9c64b6dbd24266a1d41a1e99d4916b16f011d19339d6cf29165c58710efe1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}