{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x09633b4167dfddb1c2b7a948ca9a72dd8f6623385364aff4e039e3e9363fdada",
    "signature": "0x47223aaa0a74a41eb0721133ea458efdf491858de155a47cc6bec9da7fbd33f54f44c6a80abd0f0549e69b4b3b13c13ced42085a2134ac0f76a0dda3f931f8f21b",
    "signer": "0x489896B11500cF3A81d33Ee76a0CA8354f9043dF",
    "userId": "155722306"
  }
}