{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43899",
    "entityType": "User",
    "nonce": "0xb1da5e39e7872c949cf92bcecb9ea6fb25f7525d6ce7ca0e877f8cdc787195e4",
    "signature": "0x0cadacc03954d8dc3ced112a6b2b9cad809ea1f654abec8ca4ec13bae194946c1744cb85c3ea216bf37bf801d296a5a4874ac90a5a82b1ebeecbb503a49799621c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}